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Every public rating on one cosmetic, the places they disagree kept visible, and a single score whose weighting you control.

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The one rule

We never blend a score that hides who disagrees. Funding model travels with every rating. Weights are computed at read time and never stored.

Cosmetics only · lead with safetyProduct data from public sources incl. Open Beauty Facts & EWG Skin Deep · their ratings never scraped or shown

As an Amazon Associate, Greenlens earns from qualifying purchases. Affiliate income never changes a rating or ranking.Privacy Terms

Function of Beauty — every product, every rater | Greenlens

Catalog/Function of Beauty

Function of Beauty

40 products in the catalog · functionofbeauty.com (visit site, opens in a new tab)

56Fair
avg. across 40 rated products · one axis, not the card composite: 30
products the raters split on

The average covers the ingredient-safety axis only, computed live from each product's raters — never a blended or stored brand score. Open a product to weight the axes yourself.

All products Conditioner 12 Hair Styling Aid 4 Hair Treatment Serum 14 Shampoo 8

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Best overall Worst overall Most contested A–Z

71
Function of Beauty
Straight Hair Shampoo, Vanilla
GoodOverall · your weights
5685
raters split 42–90
Data Robust · 30/30
6 raters · split 42–90 on ingredient safety
EU Harmonised Classification (CLP Annex VI)Government90
Greenlens Ingredient ScanIndependent55
ANSES Endocrine DisruptorsGovernment80
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent82
Cruelty-Free CertificationNonprofit85

Function of Beauty

Coily Hair Shampoo (2020 formulation)

FairOverall · your weights

5285

raters split 40–94

Data Robust · 38/38

7 raters · split 40–94 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government60
Greenlens Ingredient ScanIndependent62
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent94
ANSES Endocrine DisruptorsGovernment40
Health Canada Ingredient HotlistGovernment85
Cruelty-Free CertificationNonprofit85

Custom Coily Hair Shampoo Base with Flaxseed Oil

Function of Beauty

Custom Coily Hair Shampoo Base with Flaxseed Oil

FairOverall · your weights

5285

raters split 40–94

Data Robust · 38/38

7 raters · split 40–94 on ingredient safety

ANSES Endocrine DisruptorsGovernment40
Health Canada Ingredient HotlistGovernment85
EU Harmonised Classification (CLP Annex VI)Government60
Greenlens Ingredient ScanIndependent62
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent94
Cruelty-Free CertificationNonprofit85

Custom Curly Hair Shampoo Base with Chia Extract

Function of Beauty

Custom Curly Hair Shampoo Base with Chia Extract

FairOverall · your weights

5185

raters split 40–88

Data Robust · 38/38

7 raters · split 40–88 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government60
Greenlens Precautionary ScreenIndependent42
ANSES Endocrine DisruptorsGovernment40
Greenlens Ingredient ScanIndependent56
Greenlens Tolerance ScreenIndependent88
Health Canada Ingredient HotlistGovernment85
Cruelty-Free CertificationNonprofit85

Curly Hair Shampoo (2020 formulation)

Function of Beauty

Curly Hair Shampoo (2020 formulation)

FairOverall · your weights

5185

raters split 40–88

Data Robust · 38/38

7 raters · split 40–88 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government60
Greenlens Ingredient ScanIndependent56
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent88
ANSES Endocrine DisruptorsGovernment40
Health Canada Ingredient HotlistGovernment85
Cruelty-Free CertificationNonprofit85

Function of Beauty

Coily Hair Co Wash

FairOverall · your weights

5185

raters split 40–94

Data Robust · 24/24

6 raters · split 40–94 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government70
Greenlens Ingredient ScanIndependent62
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent94
ANSES Endocrine DisruptorsGovernment40
Cruelty-Free CertificationNonprofit85

Straight Hair Shampoo

Function of Beauty

Straight Hair Shampoo

FairOverall · your weights

5085

raters split 40–85

Data Robust · 36/37

7 raters · split 40–85 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government70
Greenlens Ingredient ScanIndependent46
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent82
ANSES Endocrine DisruptorsGovernment40
Health Canada Ingredient HotlistGovernment85
Cruelty-Free CertificationNonprofit85

Wavy Hair Shampoo

Function of Beauty

Wavy Hair Shampoo

PoorOverall · your weights

2285

raters split 1–85

Data Robust · 39/40

7 raters · split 1–85 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government70
Greenlens Precautionary ScreenIndependent42
ANSES Endocrine DisruptorsGovernment40
Greenlens Ingredient ScanIndependent1
Greenlens Tolerance ScreenIndependent25
Health Canada Ingredient HotlistGovernment85
Cruelty-Free CertificationNonprofit85